45045503 has 4 divisors (see below), whose sum is σ = 45400320. Its totient is φ = 44690688.

The previous prime is 45045493. The next prime is 45045509. The reversal of 45045503 is 30554054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30554054 = 2 ⋅15277027.

It is a cyclic number.

It is not a de Polignac number, because 45045503 - 2⁴ = 45045487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45045509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177218 + ... + 177471.

It is an arithmetic number, because the mean of its divisors is an integer number (11350080).

Almost surely, 2^45045503 is an apocalyptic number.

45045503 is a deficient number, since it is larger than the sum of its proper divisors (354817).

45045503 is a wasteful number, since it uses less digits than its factorization.

45045503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354816.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 45045503 is about 6711.5946689293. The cubic root of 45045503 is about 355.8091784444.

Adding to 45045503 its reverse (30554054), we get a palindrome (75599557).

The spelling of 45045503 in words is "forty-five million, forty-five thousand, five hundred three".